Narrowing the problem between display and charging assembly.
I was cleaning my phone using your tear down guide (Very helpful! Thank you). But after closing my phone up, I noticed that the touchscreen stops working for a few minutes but the issue resolves when I pat the phone. So, hoping to find a loose connection, I reopen the phone, secure all connections and close it. But this time the display stops working completely. Everything else is working ( I checked). So, I am guessing that there is a problem with my charging assembly or display. I want to replace whatever is causing problems but I cannot afford to buy both. Can you please help me narrow the problem down to one of the above (asap, I have no replacement phone)?